Abstract:
미세전극어레이는, 유연한물질로이루어지는기판및 기판상에위치하는하나이상의미세전극을포함할수 있다. 기판은, 기판의일 부분에위치하며기판을적어도부분적으로제거함으로써기판의두께를감소시키도록형성된패턴을포함할수 있다. 패턴에의하여기판의유연성을증대시킴으로써 2차원평면상에제작된미세전극어레이를용이하게 3차원적으로변형할수 있다. 예컨대, 미세전극어레이는곡면을갖는물체에밀착될수 있어, 생체에이식될경우이식되는대상의형태를따라균일한밀착을제공할수 있다.
Abstract:
PURPOSE: A method for manufacturing a polygonal drug delivery system is provided to effectively and easily prepare the system. CONSTITUTION: A method for manufacturing a polygonal drug delivery system comprises: a step of preparing an outer layer of the system; and a step of injecting a drug to the core. A step for preparing the outer layer comprises: a step of forming a pattern on a substrate to prepare a primary mold; a step of molding the primary mold to prepare a secondary mold(140); and a step of preparing the outer layer by a stamping method using concavo-convex of the secondary mold. The outer layer contains biodegradable polymers.
Abstract:
PURPOSE: A door latch device is provided to prevent a collision between a user and a hinged door opened by an opponent when the user opens the door or stands around the door. CONSTITUTION: A door latch device includes a latch unit (100), a connection driving unit (300), a first slide unit, and a second slide unit. The latch unit includes a first latch bolt (110a) and a second latch bolt (110b) possible to move forward and backward. The connection driving unit includes a first knob shaft (340a) and a second knob shaft which are rotated by receiving power from outside; a first slide hooking bracket (310) converting a rotational motion of the first knob shaft into a linear motion; and a second slide hooking bracket converting a rotational motion of the second knob shaft into a linear motion. The first slide unit connects the first slide hooking bracket to the first latch bolt. The second slide unit connects the second slide hooking bracket to the second latch bolt.
Abstract:
PURPOSE: A drug delivery system is provided to selectively and easily allow bacteria to adhere onto a specific layer by comprising a hydrophilic biodegradable polymer layer and a hydrophobic biodegradable polymer layer. CONSTITUTION: A drug delivery system comprises a hydrophilic biodegradable polymer layer (100) and a hydrophobic biodegradable polymer layer (111). Bacteria adhere onto the surface of one layer among the biodegradable polymer layers. A drug is contained in the biodegradable polymer layer in which bacteria did not adhere. The hydrophilic biodegradable polymer contains one or more ingredients selected from alginate or a derivative thereof, chitosan or a derivative thereof, hyaluronic acid or a derivative thereof, gelatin, collagen, polyethylene glycol (PEG), and polyvinylpyrrolidone (PVP). The hydrophobic biodegradable polymer contains one or more ingredients selected from poly-caprolactone, L-poly-lactides (LPLA), poly-glycolic acid (PGA), poly-D-lactide (PDLA), poly-lactic acid (PLA), and poly-lactic-co-glycolic acid (PLGA). [Reference numerals] (100) Hydrophobic polymer layer; (110) Amphiphilic adhesive material; (111) Hydrophilic polymer layer containing a drug
Abstract:
PURPOSE: A method for manufacturing a high-sensitivity flexible chemical sensor manufacturing method based on a graphene sheet composite in which metal is attached by plasma processing is provided to control properties of graphene and the number of a functional group without a separate complex surface processing process by introducing plasma. CONSTITUTION: A method for a chemical sensor comprises: a step of generating graphene by a chemical vapor deposition while gradually increasing temperature from 800-1200°C; a step of stabilizing the graphene with a dry ice wind direction cooling device; a step of transferring the graphene on a flexible substrate; a step of introducing a surface functional group by plasma-processing the graphene transferred on the flexible substrate; and a step of forming a metal nano particle by using ultrasonic waves and manufacturing a nano composite by attaching the surface functional group to the metal nano particle through a coordinate bonding method. A detection member for detecting changes in electric properties of hydrogen gas is provided.
Abstract:
본 발명은 신호 처리된 영상 정보를 받아 전기 신호로 변환해주는 주회로부, 주회로부의 정보를 받아 망막 전극을 직접 전기 신호로 자극하는 보조회로부로 구성된 고해상도 인공 망막 자극기에 관한 것이다. 이에 의해, 기존 고해상도 인공 망막 자극기가 가지고 있던 문제점들을 해결하여 고해상도 인공 망막 자극기의 효율적인 적용으로 인체 내 망막 삽입이 보다 용이하게 함으로써 시각 장애인들의 시각 확보의 질을 높이고 생활의 편의를 높이는데 기여할 수 있다.